Unable to save document on desktop.

Take all backup of user's data (Desktop, Documents, Downloads,Video)

1. Click Start, type regedit in the Search box, and then press ENTER.

2. In Registry Editor, locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList

3.  In the navigation pane, locate the folder that begins with S-1-5 (SID key) followed by a long number.

4. Right Click on Folder click on export button and save the old registry

5. Delete the old registry by clicking the delete button after saving the old registry.

6. Go to C drive and open user folder and delete the user's (eg: tarapada_m) profile.

7. Restart computer after delete the user's profile.

8. Login with deleted user (eg: tarapada_m) and new profile will be created.